Hosts free resources the VM and start at boot

[enakamatu]

Sorry for my bad English,

We have a small school with 10 computers with windows xp and 4gb of ram and use virtualbox to class. As the VM this on XP, we can not use more than 2 GB of ram.

It's like having another S.O the host to free up more resources for VM? As? What options?

I want also when the host give booot already call the VM, I read something with VMWARE, but not found anything to virtualbox.

[mpack]

Your question concerns memory allocation on the host, this topic therefore does not belong in "Other Guests". I think "Using VirtualBox" fits it best. I will move the topic.

Replacing the host OS on 10 PCs would be quite an unheaval. Have you considered using the Windows "/3GB" boot option? See here.

I think you should also consider why your guests need more than 2GB RAM. Perhaps a good lesson is to learn to work with available resources.

[enakamatu]

Grateful for the return,

Yes, we realializar the upgrade, the question is really the host must have 50% of RAM? S.O. windows / linux host or have another suggestion S.O. to host.

And Linux, which the "lighter"?

[mpack]

Well, I already answered "the question". See the "/3GB" link.

In Windows hosts the decision to divide the 4GB flat address space into two (by default) is an arbitrary one. Other hosts might work in a different way but I don't use those other hosts so I'm not qualified to discuss them.

This isn't really a discussion about how lightweight the host is: I doubt you'll find a modern alternative to XP that requires less resources (it is after all designed to run on 2002 computers). It's really a matter of the conventions it uses for memory management. In 2002, reserving 2GB for user data no doubt seemed like vast overkill.

[enakamatu]

ok I understand, thank you for return